subsystem
noun
sub·sys·tem
| \ ˈsəb-ˌsi-stəm
\
\
variants:
or less commonly sub-system
plural subsystems
also sub-systems
Definition of subsystem
: a system that is part of a larger system
These subsystems of the climate system include the atmosphere, the oceans (both upper and deep oceans), the sea ice, the ice sheets, the land surface, and the biota.— Stephen H. Schneider Voyager 2 was the troublesome twin. Even before launch, failures in its onboard computer subsystems had to be rectified. The problems continued after liftoff as the attitude-control subsystem behaved in an unexpected fashion.— William I. McLaughlin
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